How to disable home button in Android like lock screen apps do?

Question

I know this question is asked many times but I found that none of the solution is working. I tried the code given below...

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Answer 1

What you could do is override the home key function like this:

@Override public boolean onKeyDown(int keyCode, KeyEvent event)
{
    if(keyCode == KeyEvent.KEYCODE_HOME)
    {
        //The Code Want to Perform.
    }
});

Then you should be able to prevent the user to go back to home screen using this button. Hope that works for you.

EDIT: The problem with overriding the home button is it is considered as a security hole by Google, so each time someone finds a way to override it Google patches this "hole".